Wireless Sennheiser headphones not playing some content from Apple TV 4K

[Edd70]

I’ve just replaced my 4th gen ATV with a 4K. I’ve had the same Sennheiser wireless headphones for years and they’re very reliable.

For some content on the ATV 4K, no sound comes through the headphones. When this happens, the headphone charging base blinks a green light, which is abnormal. It seems to be having trouble processing the signal it’s getting through the optical cable.

I’ve played with ATV sound settings, turning off Dolby Atmos. No help. This is happening on the following apps so far: Netflix, Amazon Prime, HBO Max. It doesn’t seem to matter if the source content is Atmos or 5.1.

YouTube content plays fine. The Sonos Playbase that the TV is connected to plays everything fine.

Relevant info: New tv, bought today along with the ATV 4K. LG OLED CX series. The cable connection is an optical cable output from the TV run to a splitter which sends an optical line to the Sonos and the Sennheiser. This setup worked fine with the old TV and ATV.

I’d go nuts right now with checking connections but it’s early and don’t want to wake my wife up. But, the fact that this is intermittent and the headphone base blinks that green light when the issue is present is telling me something isn’t set correctly somewhere. Going to go into the TV settings now but any help is appreciated.

 

[Edd70]

Progress right after posting. On the TV audio settings, I changed the output from bitrate to PCM. Everything is playing now. Don’t understand these settings yet.

 

[AL2TEACH]

Progress right after posting. On the TV audio settings, I changed the output from bitrate to PCM. Everything is playing now. Don’t understand these settings yet.

yep, they can't explain in simple terms about those settings for the rest of us lol. I luv my CX and you will luv your's.

 

[Edd70]

yep, they can't explain in simple terms about those settings for the rest of us lol. I luv my CX and you will luv your's.

Yes, it replaced a 6 year old Sony, which was 4K but no HDR. Ive got it in Cinema mode, which is on the dimmer side of all the modes, and the picture is so damn vivid, doesn’t look remotely dark, except for those incredible black levels. Fun toy.

 

[AL2TEACH]

Yes, it replaced a 6 year old Sony, which was 4K but no HDR. Ive got it in Cinema mode, which is on the dimmer side of all the modes, and the picture is so damn vivid, doesn’t look remotely dark, except for those incredible black levels. Fun toy.

I like a tad of pop and use filmmaker mode or cinema user and expert darkroom, old light and contrast @ 100 bright 65
color 60 and gamma 2.2 all a.i. stuff off except sound. then I tend to play with settings lol always thought about getting it calibrated. fun toy indeed.